The Dark Knight gunman sent a notebook filled with details and drawings about how he was going to kill people to his university psychiatrist one week before the shooting – but it sat unopened in the campus mail room.
The revelation will undoubtedly lead many to come to the awful conclusion the massacre could have been prevented and 12 lives could have been spared.
A law enforcement source told Fox News that the package was only discovered on Monday but they suspect it had lain there undetected since July 12.
